I'm trying to get the compilation just right. This time, I got an unexpected message:

b0rsuk@Machaka:~/zrzut/vavoom-1.31$ cmake -DWITH_SDL=Y .

CMake Error at source/CMakeLists.txt:787 (mesage):
  Unknown CMake command "mesage".

(yes I know what the message is trying to say, I just post this for your information)

Fixed.